Abstract
Primary squamous cell carcinoma (SCC) of the colon and rectum is a rare malignancy, with an incidence of less than 1 in 1,000 diagnosed colorectal cancers. This is a case of a 59-year-old male who presented with a three-month history of urinary symptoms. Work-up, however, revealed a locally-advanced, partially-obstructing primary sigmoid squamous cell carcinoma with extension to the urinary bladder. He subsequently underwent a proximal bowel diversion after extensive carcinomatosis was discovered on diagnostic laparoscopy. Colon SCC represents less than 0.5% of all colorectal tumors, and its incidence is estimated to be 0.1%. Clinically, it presents with similar signs and symptoms as colorectal adenocarcinoma. No standardized management approach has been established yet. A multidisciplinary team approach is essential in dealing with such cases. Keen attention and further investigation are warranted to clearly define the management approach to achieve better outcomes. Key words: colorectal cancer, squamous cell cancer, urinary bladder, rectum
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